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1. |
If \(\vec{a} = 4\hat{j}\) and \(\vec{b} = 3\hat{j} + 4\hat{k}\), then the vector form of the component of \(\vec{a}\) along \(\vec{b}\) is |
A. | \(\dfrac{12}{10\sqrt{3}}(3\hat{j}+4\hat{k})\) |
B. | \(\dfrac{12}{5}(3\hat{j}+4\hat{k})\) |
C. | \(\dfrac{12}{\sqrt{13}}(3\hat{j}+4\hat{k})\) |
D. | \((3\hat{j}+4\hat{k})\) |
Answer» C. \(\dfrac{12}{\sqrt{13}}(3\hat{j}+4\hat{k})\) | |